Patient care in a dentist building.

[robert pitre]

I have read 517, and I’m not sure if I right or wrong about a code question.
In a dental patient care room were the chair plug in to the receptacles, under the patient chair, dose that receptacles have to be hospital care receptacles? We are using 2014 NEC, and reading 517 Patient care space , Patient care vicinity, and 517.16 Use of Isolated Ground Receptacles, I’m not sure we’re I stand with this? Can anybody share some light on this with me? Thank you!

 

[hbiss]

No, the receptacles are not required to be hospital grade in patient treatment rooms. Those are only required in patient bed locations as in a hospital. All wiring for receptacles in patient treatment rooms must be HCF type MC though.

ISO ground receptacles are not allowed.

-Hal

 

[roger]

I agree with Hal but will add, most chairs I've seen have a sticker on the cord that says they must be plugged into a HG receptacle, there is no real reason except a CYA for the manufacturer.

Roger

 

[roger]

We are using 2014 NEC, and reading 517 Patient care space , Patient care vicinity, and 517.16 Use of Isolated Ground Receptacles, I’m not sure we’re I stand with this? Can anybody share some light on this with me? Thank you!

Isolated Ground receptacles are not HG receptacles however, there is a HG version even though per 517.16 isolated ground receptacles are not allowed in a Patient Care Vicinity.

Roger

 

[hbiss]

Hospital grade receptacles just have additional durability and performance requirements above and beyond commercial grade. Basically the difference is because of their location in an area that would subject them to frequent insertions/withdrawals and rough use. They must maintain contact integrity, particularly the ground contact.

I can't see any of that being an issue under a dental chair where it's plugged in once and forgotten.

-Hal

 

[robert pitre]

Hospital grade receptacles just have additional durability and performance requirements above and beyond commercial grade. Basically the difference is because of their location in an area that would subject them to frequent insertions/withdrawals and rough use. They must maintain contact integrity, particularly the ground contact.

I can't see any of that being an issue under a dental chair where it's plugged in once and forgotten.

-Hal

Thanks for the help.

 

[robert pitre]

Isolated Ground receptacles are not HG receptacles however, there is a HG version even though per 517.16 isolated ground receptacles are not allowed in a Patient Care Vicinity.

Roger

Thanks for the help.